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1. Shell Programming and Scripting
Hi,
I need all your help to achieve the below functionality.
I have a big 2 GB file and inside the file we need to identify, whether having a comma(,) or pipe(|) or tab or fixed position or semicolon(;) delimiter. If any of those delimiter found need to replace the file with pipe(|)... (1 Reply)
Discussion started by: lkeswar
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2. UNIX for Advanced & Expert Users
Hello guys,
I have a problem where I need to add a delimiter, that can be | for example, after each 28000 chars.
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3. Shell Programming and Scripting
Hi,
I have file
#cat drivers.txt
fcs0
fcs1
vscsi1
vscsi2
In this i need to check the availabality of "fcs" or "vscsi" alone not vscsi0,fcs1
I tried with "if condition" but it is not working.
cat drivers.txt| while read ADAP
do
echo "Checking for $ADAP"
if ;then
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Discussion started by: ksgnathan
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4. Shell Programming and Scripting
I have a file with multiple lines. From each line I want to get all strings that starts with '+' and ends with '/'. Then I want the strings to be separated by ' + '
Example input:
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Sample output:
$A$ + At + K (20 Replies)
Discussion started by: Viernes
20 Replies
5. UNIX for Dummies Questions & Answers
I was trying to run a code to check if a fax number is empty or not.
for that, I've written the following code which is throwing an error.
#!/bin/ksh
fax= "999-999-9999"
if ; then
fax_no="000-000-0000"
else
fax_no=$fax
fi
echo $fax_no
And I get the... (7 Replies)
Discussion started by: hooaamai
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6. Shell Programming and Scripting
I know this should be simple, but I've been manning sed awk grep and find and am stupidly stumped :(
I'm trying to use sed (or awk, find, etc) to find 4 characters on the second line of a file.txt 44-47 characters in. I can find lots of sed things for lines, but not characters. (4 Replies)
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7. Shell Programming and Scripting
I was using the following bash command inside the emacs compile command to search C++ source code:
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Emacs will then position me in the correct file and at the correct line... (0 Replies)
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8. Shell Programming and Scripting
here is my simple script to show process and owners except me:
ps `-ef |grep xterm |grep -v aucar` | while read a1 a2 a3 a4 a5 a6 a7 a8
do
echo KILL..\($a1\).. $a2 |more
done
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Discussion started by: xramm
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9. Shell Programming and Scripting
Hi,
I need some advise on treating non printable chars over ascii value 126
Case 1 :
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Discussion started by: braindrain
1 Replies
10. UNIX for Advanced & Expert Users
Hi,
One of our application is producing log files. But if we open the log file in vi or less or view mode, it shows all the special characters in it. The 'cat' shows correctly but it shows only last page. If I do 'cat' <file_name> | more, then again it shows special characters.
... (1 Reply)
Discussion started by: divakarp
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UNIQ(1) BSD General Commands Manual UNIQ(1)
NAME
uniq -- report or filter out repeated lines in a file
SYNOPSIS
uniq [-cdu] [-f fields] [-s chars] [input_file [output_file]]
DESCRIPTION
The uniq utility reads the standard input comparing adjacent lines, and writes a copy of each unique input line to the standard output. The
second and succeeding copies of identical adjacent input lines are not written. Repeated lines in the input will not be detected if they are
not adjacent, so it may be necessary to sort the files first.
The following options are available:
-c Precede each output line with the count of the number of times the line occurred in the input, followed by a single space.
-d Don't output lines that are not repeated in the input.
-f fields
Ignore the first fields in each input line when doing comparisons. A field is a string of non-blank characters separated from adja-
cent fields by blanks. Field numbers are one based, i.e. the first field is field one.
-s chars
Ignore the first chars characters in each input line when doing comparisons. If specified in conjunction with the -f option, the
first chars characters after the first fields fields will be ignored. Character numbers are one based, i.e. the first character is
character one.
-u Don't output lines that are repeated in the input.
If additional arguments are specified on the command line, the first such argument is used as the name of an input file, the second is used
as the name of an output file.
The uniq utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
The historic +number and -number options have been deprecated but are still supported in this implementation.
SEE ALSO
sort(1)
STANDARDS
The uniq utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
BSD
January 6, 2007 BSD